Not a smartphone upgrade, but a way to make the smartphone a bit less obnoxious:

How to configure Android to handle incoming spam calls

If you find yourself always inundated with spam calls on your Android phone, this may just be the cure for that issue.

I don't know about you, but spam phone calls have been a plague for me. Those calls aren't just annoying but could be a serious risk to your identity and privacy. Needless to say, I loathe those bothersome callers and go out of my way to avoid them.

Thankfully, Android has some pretty handy tools built right into the phone app to help you banish those spam calls. These built-in configuration options work in conjunction with Google's spam database (which is frequently updated) to keep those calls from inundating your phone.

However, you can't just expect Google to take care of everything. You need to make a couple of configuration changes within the phone app to get the most out of the service. That's what I'm going to help you with. Once you've taken care of this, your spam calls should be considerably reduced.

Will it put a complete end to them? No. But the more you use it, the fewer spam calls you'll receive.

How to configure Android to handle incoming spam calls
Requirements
The only thing you'll need to reduce spam is any Android phone running at least Android 10 (which should cover most Android devices currently on the market).

1. Open Phone settings
Open the Phone app on your Android device and tap the vertical three-dot menu in the upper right corner. From the pop-up menu, tap Settings.

2. Navigate to the Spam options
From the Phone Settings window, navigate to the spam pop-up settings window by tapping Spam and Call Screen > Call Screen > Spam.

3. Enable automatic screening
From within the Spam pop-up, select the option called "Automatically screen. Decline robocalls."